发明授权
- 专利标题： Magnetic recording medium, head slider and manufacturing methods therefor
- 专利标题（中）： 磁记录介质，磁头滑块及其制造方法
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申请号： US11047364申请日： 2005-01-31
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公开(公告)号： US07317594B2公开(公告)日： 2008-01-08
- 发明人: Norikazu Nakamura , Hiroshi Chiba , Yoshiharu Kasamatsu , Takayuki Musashi , Yukiko Oshikubo , Tsukasa Itani
- 申请人： Norikazu Nakamura , Hiroshi Chiba , Yoshiharu Kasamatsu , Takayuki Musashi , Yukiko Oshikubo , Tsukasa Itani
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, Ltd.
- 优先权： JP2004-251418 20040831
- 主分类号： G11B5/82
- IPC分类号： G11B5/82
摘要：
A magnetic recording medium and head slider that can furnish excellent head flying stability, a magnetic recording device having excellent head flying stability, and a method for manufacturing, in a short time, a magnetic recording medium and head slider that can furnish such excellent head flying stability, are provided. For both of the magnetic recording medium and head slider, the protective layers are each composed of two layers, that is, a lower layer and an upper layer thereon; the ionization potential of the lower layer is made to be smaller than that of the upper layer; and the surface free energy of the upper layer is made to be 45 mN/m or less.
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